Search:

Now that I have it running correctly need to work out a few bugs. Anyone have any over pressure issues with the new style pumps and the old Saginaw boxes? Mine is noisy and the oil gets hot when...

Figured it out. I had inadvertently turned off the hp fuel pump control on the tune. Set it back to factory spec. Runs and starts way better now. Scary fast.
Now to redo all my vve and maf...

We?ll, thought the hp pump might be it. Got a new one at gm. Still have the same fuel pressure readings and falls on its face. That?s not it.

Another question. Will the fuel pump fail and not throw a code? I have no fuel codes and no gas in the oil from what I can tell. Only driven it about 10 miles though since putting it in. Maybe...

throttle pedal shows 99.6 when fully depressed. Throttle plate doesn't show over 30%, but no throttle performance codes. Should it open completely at KOEO?

Fuel rail SAE shows 100 psi at most...

Here is after adjusting vve and maf for a couple of hours till the laptop died again. I tried playing with the torque tables first. Didn't make much difference with the falling flat. Made it very...

Been tuning my VVE tables. Tune and last log below. Laptop battery died, so I'll keep trying later. MAF disabled.

Idle, low speed drivability and acceleration from a stop is good. Throttle...

Here is the latest log. I can't seem to figure out how to get the VVE graph to populate. So, i added 10% to the VVE tables till I got it closer, ended up being about 50%. Anyone have an idiots...

What?s the best way to setup a baseline and continue to dial in the tune? Vve or virtual torque? Have a different intake manifold, throttle body and cold air than stock. Thanks.

One more thing. I don?t think the intake and throttle body is stock. He said something about putting an shorter intake on it from something like a corvette. Bolts up fine.

It has an in tank pump (might be holly, can?t remember) and external regulator on the firewall. Fuel supply is about 68 psi on the gauge at the regulator.
Intake is a 4? diy cold air kit the...

Here is the log after swapping the o2 sensors. I think I had them wrong for some reason. D side is now bank 1 and pass is bank 2. According to the wiring diagrams I had them swapped. Not sure...

latest log after adding pids. Fuel trims seem to get worse as it runs. I'll check the sensors. Might the be right track.

115068

What PID's do you want for fuel trim on the log? I'll add them with the MAF, MAP and spark timing
You talking about the 02 sensors backwards? Only have the front sensors hooked up. No cats or...

Here are a couple of logs I grabbed when I got home from work. One is my latest tuning try and the other is after me trying to disable the dynamic air and run strictly off the MAF. There is way more...

I?ll look tonight and count and reply. It matched the wiring diagrams for the 17 5.3 I had and the connector is the same.

Yes it's a swap. 17 5.3 from 2wd silverado with 6 speed auto into a 72 chevelle. The place I bought the setup from in Houston has made it a nightmare. Sent me the engine a month late, sent a 2016...

Have a couple of questions with the VCM editor and scanner.

On the scanner, is there a way I'm not seeing to make the short term o2 show on the graph? When I'm scanning I can get short term 02...

Wasn't sure if it was correct or not when it showed NA-TIAP on the MAP sensor setting on the editor. Tried both MAP settings, same deal with the idle stumble. Have more questions on the VCM scanner...

Have a 17 l83 from a 2wd Silverado and 6l80e. My map sensor is on the intake. According to the vcm editor it was telling the pcm that the map was on the throttle body. Is that normal on the l83?s?...

Thanks. Your chart is kind of what I did. Had to use a fan controller from a Jeep Liberty to work with the old school electric fans. Still get variable fan speed, just not as smoothly.

Take a look at your pcm pin outs for the sensors and double check your harness. I bought a ?complete? setup from a vender and they gave me a 2016 harness and 2017 engine and pcm. Both had the same...

How have you guys been wiring the ac variable displacement solenoid? I don?t get much pressure without putting 12v to the solenoid. When I do the trinary switch kicks the fans on and keeps the...

Is there a guide for changing the settings for temp and duty cycle for pwm fan control? Thanks.

Found a solution. I?m using a fan controller for a dodge/Chrysler. Takes pwm input and converts it and will operate your standard fan. Got it working, now just have to dial in the temps with the...